Kinematics Research On Last Exerting Feature Of Chinese Youth Female Shot Putters

Shot put is a sport which has a long history. This movement is also introduced earlier inour country sports. In old China shot was as official event at the first national sports games inBeijing, only man could take part in shot put events. Female’s shot put was as official eventcan be traced back to1930, the fourth national games. After new China was founded, female’sshot put level developed rapidly, which becomes our country’s advantage, once advanced inthe world, in track and field project. But in recent years female’s shot put results appeargreatly retraction。In order to make our country female’s shot put project regain brilliant. Thispaper analyses young female shot put athletes’ technique, trying to find out differences andshortages and provide certain reference basis for the coaches and athletes’ technology, so as toensure female’s shot put talents reserves projects in China.On April16,2010, the national youth athletics championship was held in Shijiazhuang.Female shot put competition was photographed in the whole process. Due to differences levelbetween athletes, this paper selects out six players who are achieved national second standardas research object. Photography was analyzed by American Ariel analytical system. In theprocess, DTL human body model image was choused, digital image processing, and low passdigital filtering method was used in smoothing original data.Shot put techniques are composing by the following four parts: keep ball, preparation,sliding and last exertion, among the four parts, last exertion is the most important part whichdirectly impact on the final result. This thesis chose female youth shot put athletes who are thereserve force as research object, by using methods of documentation, interview method, videoanalytic method and quantity statistics method. In order to analyses the last exertion part; itwill be analyzed by four periods: transition, last exertion of preparation, last exertion ofacceleration and shot put our moment. The author read many of the documents, to view theamateur who lead the team training and to engage in track and field teaching and training tointerview professor and coaches, in order to have a deep understanding on shot put technique.Results are as follows:1Compared with mature athlete, the six research athletes that take longer time andbeyond devices are not clear. 2In the last exertion period, the six shot put athlete’s left ankle have fully support,however, the left knee joint angle did not have obviously reduced trend.3In the last exertion period, all research athletes’ last exertion order is basicallyreasonable.4Compared with mature athlete, there is disparity in angle of shooting, speed ofshooting, height of shooting of research youth athlete’s which need to be further improved.Suggestion:1During youth athletes shot put training process, videos of excellent shot put athleteshould be used widely to help they set up a correct understanding of technical actions. Youthathlete’s technique should be evaluated regularly in order to find out the existing problemstimely.2In the process of shot put training, left-side strut’s importance should be emphasized,and variety of training methods to enhance the body of left side should be used to reduce therapid supporting process and unnecessary movement.3Selecting youth shot put athlete, competitive ability should be emphasized, andathlete’s body shape, physical quality, and body function are the basics to ensure that athletes’height of shooting, angle of shooting, and speed of shooting could be get the best byprofessional training.